//本程序仅含主方法
Person person1=new Person();
Person person2=new Person();
Person person3=new Person();
	
person1.setName("张三");
person1.setSex("男");
person1.show();
	
person2.setName("李四");
person2.setSex("女");
person2.show();
		
person3.setName("王五");
person3.setSex("男");
person3.show();
